test connection

A recent project using C3P0 in Hibernate connection pool, database Mysql. Development and testing is no problem, each in a long run of free time exception: org.hibernate.exception.JDBCConnectionException: could not execute query at org.hibernate.exce

A recent project using C3P0 in Hibernate connection pool, database Mysql. Development and testing is no problem in running a long period of idle time for each on the abnormal Communications link failure due to underlying exception: java code org.hibe

Java Database Connectivity (JDBC) by a group of Java programming language classes and interfaces. JDBC for tool / database developers with a standard API, so that they can use pure Java API to write database applications. However, each developer's in

The following database connection is not all verified, but many times before in search of connections when finishing down smoothly for reference purposes only. -------------------------------------------------- ---------------------------------------

First, install the mysql data source driver 1. If you do not mysqi data source, you need to install myodbc, myodbc after installation, you need to configure the control panel in the mysql data source. Found in the Control Panel Administrative Tools,

Environment: ORACLE data on two machines simultaneously such as: branch to the head office database data to synchronize the database conditions: 1, the database GLOBAL_NAME (local and remote to be) SELECT * FROM GLOBAL_NAME; 2, Global_name argument i

The current environment: an oracle 9.2 database known, there are a number of tables, now need to use the power designer 12, the reverse generation pdm Steps are as follows: (1) create a new file pdm (2) change the current database to oracle9.2 --- [D

Teacher arranged an experiment, said to connect to sqlserver database, so I would like to use jsp to connect to the more familiar, there are attempts to connect before, but due to patch problems are often wrong, and today is no exception, I am only a

During the operation of the project from time to time in the console print out an error message, error message appears after the procedure did not affect the operation, so none of this has been too much attention, and now, the project draws to a clos

Testing and instruction (Instrumentions) Android includes a rich set of test tools, which extends for the Android environment, industry-standard JUnit testing framework. You can still use the JUnit test your Android applications, but Android allows y

Solution on the Oracle database is not remote login options: 1, check the remote IP address, account number, password, and connect to the database name is correct. 2, check the local Oracle listener service is not started. 3, the remote operating sys

Solution is not on the Oracle database remote login method: 1, check the remote IP address, account number, password, and connect to the database name is correct. 2, check the local Oracle listener service is not started. 3, the remote operating syst

Vpn connection through the external network server, sqlplus, plsql are connected no problem. tnsping service name is not a problem. However, even when exported by exp there Ora-12170: TNS connection timed out. The problem is too strange, and before t

Today has just discovered that the Connection object through jdbc, can get so much information, including all of the table structure. package com.billows.test; import java.sql.Connection; import java.sql.DatabaseMetaData; import java.sql.DriverManage

[Source]: http://blog.csdn.net/SQL0815/archive/2006/11/16/1388932.aspx The following is specified in the Oracle database structure to export to PowerDesigner (PD) in the method, practice makes perfect: Prerequisites: 1. Existing Oracle database sun88

[Source]: http://blog.csdn.net/SQL0815/archive/2006/11/16/1388932.aspx The following is specified in the Oracle database structure Export to PowerDesigner (PD) in the method, lb: Prerequisite: 1. Existing Oracle database sun880, which contains severa

In WebSphere 6 configuration DB2 (AS/400) data sources test connection success, but reportedly found in the Web project the following error: [SQL0204] TEST in UCAONT type * FILE not found Reason: DB2 multiple schema, project table does not specify a

Recently a very tangled. JBPM4. 3 issues. Help my application development environment is: JPBM4.3, Spring2.0 build the project framework is based on SSH. Database MySql5.0. The first step: The project profile Database db.properties # Development dev.

Java Database Connectivity (JDBC) by a group of Java programming language with the class and interface. JDBC as a tool / database developers with a standard API, so that they can use pure Java API to write database applications. However, the interfac

The first is the establishment of clusters and servers, the company built well, my task is to deploy to the above I have developed projects. The first step, find the project directory server, using ftp tool to transfer project files added: Transfer t

Suppose oracle installed on another machine IP address is 192.168.1.202, while your machine is installed MS SQL SERVER2005, now you want to import the oracle came in a database. Prerequisite: In the oracle client installation, attention must be insta

Introduction 1. On the section reviews 2.java procedure how to do oracle √ 3. How to operate the data in oracle 4.oracle Transaction 5.sql function using √ Desired goals 1. To master skills in oracle tables of data operations 2. Control program opera

Articles made reference to how to set up a good JDBC data source. Outflow of the configuration line for most of the previous version of the Tomcat configuration. Records the course of my configuration. 1. Add the JDBC database driver Used in your dat

This section covers only svn on a simple project, integration test coverage, code quality checks will be given in the relevant section later. professional version of the administrators and general users only two roles, the administrator responsible f